Interpretation of Incidence Rates Data

Incidence Rate Report for South Dakota by County

Incidence Rate (95% Confidence Interval) - The incidence rate is based upon 100,000 people and is an annual rate (or average annual rate) based on the time period indicated. Rates are age-adjusted by 5-year age groups to the 2000 U.S. standard million population.

Larger confidence intervals indicate less stability of the data. This is often due to low counts that are not quite low enough to be suppressed.

Data is currently being suppressed if there are fewer than 16 counts for the time period.

Line by Line Interpretation of the Report

South Dakota6,10

Rate : The incidence rate is 49.1 with a 95% confidence interval from 46.4 to 52.0 and 245 average annual cases over 2007-2011.

Recent Trend : The trend is rising because the trend is 2.6 with a 95% confidence interval from 2.3 to 3.0.

US (SEER+NPCR)1,10

Rate : The incidence rate is 54.6 with a 95% confidence interval from 54.5 to 54.8 and 98,832 § average annual cases over 2007-2011.

Recent Trend : The trend is falling because the trend is -2 with a 95% confidence interval from -3.2 to -0.8.

McCook County6,10

Rate : The incidence rate is 76.0 with a 95% confidence interval from 42.7 to 129.3 and 3 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 0 with a 95% confidence interval from 0.0 to 0.0.

Butte County6,10

Rate : The incidence rate is 69.1 with a 95% confidence interval from 43.6 to 105.4 and 5 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 31.4 with a 95% confidence interval from -10.9 to 94.0.

Pennington County6,10

Rate : The incidence rate is 63.5 with a 95% confidence interval from 54.7 to 73.5 and 38 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 14 with a 95% confidence interval from -4.3 to 35.7.

Union County6,10

Rate : The incidence rate is 59.0 with a 95% confidence interval from 38.2 to 87.8 and 5 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 18.4 with a 95% confidence interval from -9.8 to 55.5.

Fall River County6,10

Rate : The incidence rate is 57.7 with a 95% confidence interval from 34.5 to 97.4 and 4 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -23.7 with a 95% confidence interval from -53.9 to 26.5.

Minnehaha County6,10

Rate : The incidence rate is 56.3 with a 95% confidence interval from 49.4 to 63.9 and 49 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -1.6 with a 95% confidence interval from -11.0 to 8.7.

Davison County6,10

Rate : The incidence rate is 55.0 with a 95% confidence interval from 38.2 to 77.3 and 7 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -6.8 with a 95% confidence interval from -34.6 to 32.9.

Hughes County6,10

Rate : The incidence rate is 52.6 with a 95% confidence interval from 34.3 to 77.5 and 5 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 18.1 with a 95% confidence interval from -25.4 to 87.0.

Codington County6,10

Rate : The incidence rate is 51.6 with a 95% confidence interval from 37.3 to 69.9 and 9 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -14.9 with a 95% confidence interval from -41.2 to 23.1.

Yankton County6,10

Rate : The incidence rate is 50.1 with a 95% confidence interval from 34.8 to 70.3 and 7 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -4 with a 95% confidence interval from -20.9 to 16.6.

Custer County6,10

Rate : The incidence rate is 49.9 with a 95% confidence interval from 28.3 to 87.0 and 3 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 1.4 with a 95% confidence interval from -37.4 to 64.2.

Brown County6,10

Rate : The incidence rate is 47.1 with a 95% confidence interval from 35.8 to 61.3 and 12 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -3.7 with a 95% confidence interval from -12.4 to 5.9.

Lawrence County6,10

Rate : The incidence rate is 47.1 with a 95% confidence interval from 33.0 to 65.9 and 8 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -12.7 with a 95% confidence interval from -24.3 to 0.6.

Lincoln County6,10

Rate : The incidence rate is 43.7 with a 95% confidence interval from 30.8 to 60.1 and 8 average annual cases over 2007-2011.

Recent Trend : The trend is rising because the trend is 12.1 with a 95% confidence interval from 1.2 to 24.1.

Lake County6,10

Rate : The incidence rate is 39.9 with a 95% confidence interval from 22.4 to 67.5 and 3 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 5.4 with a 95% confidence interval from -31.8 to 62.9.

Meade County6,10

Rate : The incidence rate is 37.8 with a 95% confidence interval from 24.3 to 56.0 and 5 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is 11.9 with a 95% confidence interval from -23.5 to 63.8.

Brookings County6,10

Rate : The incidence rate is 35.8 with a 95% confidence interval from 22.8 to 53.4 and 5 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -16.5 with a 95% confidence interval from -48.9 to 36.2.

Beadle County6,10

Rate : The incidence rate is 34.8 with a 95% confidence interval from 21.8 to 54.0 and 5 average annual cases over 2007-2011.

Recent Trend : The trend is stable because the trend is -15.9 with a 95% confidence interval from -41.5 to 21.0.

Aurora County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Bennett County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Bon Homme County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Brule County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Buffalo County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Campbell County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Charles Mix County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Clark County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Clay County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : The trend is stable because the trend is -2.9 with a 95% confidence interval from -35.3 to 45.5.

Corson County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Day County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Deuel County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Dewey County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Douglas County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Edmunds County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Faulk County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Grant County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Gregory County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Haakon County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Hamlin County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Hand County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Hanson County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Harding County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Hutchinson County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Hyde County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Jackson County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Jerauld County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Jones County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Kingsbury County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Lyman County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Marshall County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

McPherson County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Mellette County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Miner County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Moody County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Perkins County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Potter County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Roberts County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Sanborn County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Shannon County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Spink County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Stanley County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Sully County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Todd County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Tripp County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Turner County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Walworth County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Ziebach County6,10

Rate : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Recent Trend : * Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

Notes:
Created by statecancerprofiles.cancer.gov on 03/31/2015 6:03 pm.Data for the United States does not include data from Nevada.State Cancer Registries may provide more current or more local data.† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84, 85+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for denominators are based on Census populations as modified by NCI. The 1969-2012 US Population Data File is used for SEER and NPCR incidence rates.‡ Incidence data come from different sources. Due to different years of data availability, most of the trends are AAPCs based on APCs but some are APCs calculated in SEER*Stat. Please refer to the source for each area for additional information. § The total count for the US (SEER+NPCR) may differ from the summation of the individual states reported in this table. The total uses data from the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2013 data submission for the following states: California, Kentucky, Louisiana, and New Jersey but data for those states when shown individually are sourced from the SEER November 2013 submission.* Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 cases were reported in a specific area-sex-race category.

1 Source: CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2014 data submission and SEER November 2013 submission.6 Source: State Cancer Registry and the CDC's National Program of Cancer Registries Cancer Surveillance System (NPCR-CSS) January 2014 data submission. State rates include rates from metropolitan areas funded by SEER.10 Source: Incidence data provided by the National Program of Cancer Registries (NPCR). EAPCs calculated by the National Cancer Institute using SEER*Stat. Rates are age-adjusted to the 2000 US standard population (19 age groups: <1, 1-4, 5-9, ... , 80-84,85+). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Population counts for denominators are based on Census populations as modified by NCI. The 1969-2012US Population Data File is used with NPCR January 2014 data.

Please note that the data comes from different sources. Due to different years of data availablility, most of the trends are AAPCs based on APCs but some are APCs calculated in SEER*Stat. Please refer to the source for each graph for additional information.

Interpret Rankings provides insight into interpreting cancer incidence statistics. When the population size for a denominator is small, the rates may be unstable. A rate is unstable when a small change in the numerator (e.g., only one or two additional cases) has a dramatic effect on the calculated rate.

Suppression is used to avoid misinterpretation when rates are unstable.